Neutrino and dark matter in a gauged $U(1)_R$ symmetry

TL;DR

This paper proposes a model where a gauged $U(1)_R$ symmetry explains neutrino masses and dark matter, analyzing its implications through relic density, experimental constraints, and meson mixing effects.

Contribution

It introduces a novel $U(1)_R$ gauge symmetry framework linking neutrino mass generation and dark matter, with detailed phenomenological analysis.

Findings

Dark matter relic density consistent with observations.

Constraints on dark matter mass and couplings from direct detection.

Potential effects on meson mixing and semileptonic decays.

Abstract

We study neutrino and dark matter based on a gauged $U(1)_R$ symmetry in a framework of radiative seesaw scenario. Identifying dark matter as a bosoninc particle, it interacts with quark and lepton sectors through vector-like heavier quark and leptons, and plays an role in generating neutrino mass matrix together with neutral heavier fermions. We explore several constraints for masses and couplings related to dark matter by computing relic density and direct search, taking the neutrino oscillation, lepton flavor violations, and muon anomalous magnetic moment into account. Finally, we briefly mention semileptonic decays and neutral meson mixings at one-loop box diagrams through dark matter.